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grounding. Almost always an inadequate ground for one or other the light assembly or most commonly the ground between trailer and tow vehicle (tongue ground is not enough) - inadequate ground can work with low current loads and behave as if dead circuit with the higher load of additional lamps.
What else can I help you with?
Taillights not working on 1993 dodge Dakota but brake lights and turn signals do work what's the problem?
The bulbs should be checked on a 1993 Dodge Dakota if the taillights are not working. The plugs on the trailer package should also be checked to make sure that they are working.
Your trailer lights come on but the turn signals will not work?
check for power at the trailer connector.
Why do both your trailer turn signals blink at the same time?
If both your left and right trailer signals blink at the same time there is something wrong with your wiring harness.
What causes a trailer light to not work only when the headlights are on and the brake depressed?
Sounds like a weak ground connection somewhere on the trailer or tow vehicle.
What are some hazards I should be aware of from a portable office?
Provided the trailer is properly constructed, a portable office trailer is as safe as any other trailer. You shouldn't feel unsafe at all.
Where is the fuse located on a 2002 Ford Explorer XLT that controls the turn signals on a trailer that is connected to the truck?
under the hood you should find a small 10A or 15A fuse. There is a separate fuse for the trailer turn signals.
04 Durango trailer running lights are inop checked fuses and relay all ok used test light on prongs only able to get power at battery terminal turn signals and brake lights work fine?
Check ground circuit
What and where are fuses for trailer turn signals on 1998 Lincoln navigator?
The 1998 Lincoln Navigator trailer turn signal fuse will be in the fuse box. The trailer turn signal fuse will be one of the auxiliary fuses at the bottom of the second column.
Do I need a modulator for a trailer hitch on your 1993 Subaru Legacy in wagon in order for the trailer lights to work?
Yes. You need a converter to combine the turn signals with the brake lights.
Why do trailer lights work only until headlights come on?
Check your ground wire, all the lights must be grounded back to the vehicle.
2002 avalanche the left turn signals dont work the indicator in side flashes but the front and rear lights dont I have checked the bulbs they are OK when I hook up a trailer the trailer lights work?
OK, if the left turn signal light flashes on the trailer when you hook it up I would pretty much think it has to be the bulbs or sockets are bad in your truck. I'd put a new bulb in and seee what happens before anything else. If no help, pull one of the bulbs and put a test light in there and see if it flashes.
Is there a fuse to the trailer wiring harness on a 2003 Chevy Silverado?
There are about 5 fuses for the trailer harness, Trailer Back up,Trailer left turn, Trailer right turn, Trailer Brake, and Trailer hazards. They are located in the underhood fuse box on the Drivers side of your motor. On my 2003 Silverado, the Trailer left/stop and Trailer right/stop fuses are located in the fuse panel just inside the driver's side door. (Not sure about the trailer brake or hazard fuses.....I wasn't having problems with those :). There is one additional fuse for the trailer harness. The 15A fuse for the trailer running lights is located in the fuse panel under the hood, next to the battery. The fuse is labeled "Trailer Park".
